Subsequent Events	3 Months Ended
Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events Acquisition of Usabilla Holding B.V. On February 27, 2019, the Company entered into an Agreement to purchase all the outstanding shares of Usabilla Holding B.V. (“Usabilla”), a Dutch voice of customer technology company that offers its customers products to help improve their customers’ online experience by generating and processing user feedback via targeted surveys on websites, in mobile apps and emails. The Company expects the acquisition of Usabilla to complement and expand its enterprise-grade product offering. The acquisition closed on April 1, 2019 and will be accounted for as a business combination in the second quarter of 2019. On the closing date, the company issued 1,944,211 shares of its common stock pursuant to the terms of the Agreement. The estimated total purchase price for Usabilla is approximately $84.3 million, of which $54.2 million was paid as cash consideration at the closing date. Certain disclosures required by ASC Topic 805 – Business Combinations have been omitted because the initial accounting for this acquisition was incomplete at the time of the filing of this Quarterly Report on Form 10-Q.

Subsequent Events

3 Months Ended

Mar. 31, 2019

15. Subsequent Events

Acquisition of Usabilla Holding B.V.

On February 27, 2019, the Company entered into an Agreement to purchase all the outstanding shares of Usabilla Holding B.V. (“Usabilla”), a Dutch voice of customer technology company that offers its customers products to help improve their customers’ online experience by generating and processing user feedback via targeted surveys on websites, in mobile apps and emails. The Company expects the acquisition of Usabilla to complement and expand its enterprise-grade product offering. The acquisition closed on April 1, 2019 and will be accounted for as a business combination in the second quarter of 2019. On the closing date, the company issued 1,944,211 shares of its common stock pursuant to the terms of the Agreement. The estimated total purchase price for Usabilla is approximately $84.3 million, of which $54.2 million was paid as cash consideration at the closing date. Certain disclosures required by ASC Topic 805 – Business Combinations have been omitted because the initial accounting for this acquisition was incomplete at the time of the filing of this Quarterly Report on Form 10-Q.